Charge-discharge device



FIG. 1 is a perspective view of the charge-discharge device;

FIG. 2 is a front view of the charge-discharge device;

FIG. 3 is a back view of the charge-discharge device;

FIG. 4 is a left side view of the charge-discharge device;

FIG. 5 is a right side view of the charge-discharge device;

FIG. 6 is a top view of the charge-discharge device; and,

FIG. 7 is a bottom view of the charge-discharge device. 

The ornamental design for a charge-discharge device, substantially as shown and described. 